WO2003068102A1 - Dispositif electro-optique pour la photo polymerisation de materiaux composites - Google Patents
Dispositif electro-optique pour la photo polymerisation de materiaux composites Download PDFInfo
- Publication number
- WO2003068102A1 WO2003068102A1 PCT/FR2002/000354 FR0200354W WO03068102A1 WO 2003068102 A1 WO2003068102 A1 WO 2003068102A1 FR 0200354 W FR0200354 W FR 0200354W WO 03068102 A1 WO03068102 A1 WO 03068102A1
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- WO
- WIPO (PCT)
- Prior art keywords
- thermal
- card
- diodes
- power
- leds
- Prior art date
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- 238000006116 polymerization reaction Methods 0.000 title claims abstract description 22
- 239000002131 composite material Substances 0.000 title claims abstract description 16
- 230000003287 optical effect Effects 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 12
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- 230000005540 biological transmission Effects 0.000 claims 1
- 238000009529 body temperature measurement Methods 0.000 claims 1
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 230000005855 radiation Effects 0.000 description 14
- 238000001816 cooling Methods 0.000 description 12
- 230000006870 function Effects 0.000 description 7
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/003—Apparatus for curing resins by radiation
- A61C19/004—Hand-held apparatus, e.g. guns
Definitions
- the present invention relates to an electro-optical device for the photopolymerization of composite materials, of application in particular in the dental field.
- the composite materials used in dentistry are generally based on a photopolymerizable resin whose molecular structure is transformed under the effect of light radiation of a given wavelength as a function of the absorption capacity. of the material used.
- this radiation activates the photo-initiators of the material, for an exposure time calculated as a function of the energy of this radiation to avoid excessive heating of the tissues surrounding the treatment area.
- the parameters of the radiation, wavelength, intensity, exposure time of course depend on the particular composition of each composite, but also on its color and thickness. A darker, larger-mass composite will require higher intensity radiation for its photo polymerization. This is called the polymerization parameters. To allow these factors to act optimally, that is to say invariably during the exposure time and long enough for a practitioner to be able to use them during his treatment sessions without dangerous interruption, no sufficiently reliable solution has not been proposed.
- Photopolymerization devices which meet the description given above are already known and which use light-emitting diodes, usually called LEDs, capable of often emitting radiation of wavelengths between 380 and 510 nm.
- LEDs light-emitting diodes
- Such devices include a power card, a cooling system, a light source and optical means for orienting and emitting the light energy produced by said source towards the area to be lit (or clinical site).
- These electronic means are, for example, in the form of a power supply card, of the power supply type by linear regulation, the current of the LEDs being defined by polarization resistance and by an active ventilation system (fan or by Peltier effect ) or passive (ceramic card).
- these devices known to date are adapted to emit radiation of a defined profile without the possibility for the operator to be certain that his power is stable and forcing him to bear the harmful effects of the fan. cooling or questionable efficiency of the aforementioned passive cooling systems.
- the only parameter on which an action is possible with precision is the lighting time. Also, such devices hardly offer any guarantee of use and are of limited application.
- mercury vapor lamps are used, for example, which have the drawback of emitting in the ultraviolet spectrum, which is dangerous for the eyes and the oral mucosa of patients.
- These lamps use power sources requiring high starting currents and voltages, and cooling systems usually based on fans and therefore on forced air or possibly for the most powerful based on water circulation and radiators.
- Other devices use halogen lamps which have the drawback of having a low lumen / watt ratio and a high heat dissipation compared to the light energy produced, which means that the rise in power must be limited in order to obtain more great intensities.
- These lamps use power sources whose performance is incomparable compared to the useful power and cooling systems also based on forced air.
- Devices which use spaced electrodes which are subjected to differences in electrical potential capable of producing an electric arc through a partially ionized gas at high temperature.
- Such systems employ, in combination, an infrared filter placed immediately in front of the source and making it possible to obtain a light emission spectrum of between 400 and 800 nm.
- a low-pass filter then sets the high cut-off frequency of the filter to around 515 nm.
- These lamps use power sources requiring starting voltages of several kilovolt and forced air cooling systems for the less powerful and circulating water for the others.
- the filtering system does not make it possible to safely increase the light power of the source, since the light energy absorbed by the biological tissues can lead to their destruction in the event of a sharp rise in temperature .
- the energy profile which represents the variations in the light intensity emitted over time, cannot be modified. This therefore excludes any possibility of adapting it to composite materials of different colors, for example.
- photopolymerization devices using plasma energy and having a selective emission zone isolated by more or less complex filtration.
- a document FR-98 01243 describes such an apparatus. These lamps use power sources which again require starting voltages of several kilovolts and cooling systems with forced air or with circulation of water.
- the need for cooling is less. Indeed, the conversion "electrical energy” into “light energy” is done with very good efficiency and when the LEDs are used at their nominal characteristic, the heat dissipation does not generally require active means of cooling.
- the apparatus receives conventional power supply systems which are unstable over time, and the general behavior is very sensitive to the rise in temperature. It is in particular noted by the manufacturers of LEDs that a temperature rise of 40 ° can cause a modification of the transmitted current and therefore a decrease in power of almost 50%.
- the object of the present invention is to remedy the aforementioned drawbacks by proposing an electro-optical device for the photo polymerization of composite materials, of application in particular in the dental field allowing an independent, stable and adjustable energy supply, comprising an optimized electronic system. and stable, an LED-based light source that does not require active ventilation, as well as thermal means for orienting and discharging the thermal energy produced by said source in order to ensure reliable polymerization during the clinical procedure and over time .
- the invention relates to an electro-optical device for the photopolymerization of composite materials, of application in particular in the dental field, of the type comprising a light source defined by an LED or a group of LEDs, and which is essentially characterized by what it includes electronic power supply means comprising a battery associated with a DC / DC voltage converter device commonly called DC / DC converter, passive heat removal means, as well as a central management unit operating parameters of the light source for the definition of a determined photo-polymerization energy profile.
- electronic power supply means comprising a battery associated with a DC / DC voltage converter device commonly called DC / DC converter, passive heat removal means, as well as a central management unit operating parameters of the light source for the definition of a determined photo-polymerization energy profile.
- the DC / DC converter whose variable output, allows the bias current to be adjusted without resistance by limiting the direct voltage, so that it secures the quality of the care provided thanks to the stability of the power emitted by controlling the thermal behavior, a large autonomy, several days, of the battery thanks to a reduced electrical consumption, the maintenance of the emitted power whatever the state of charge of the battery, until the complete discharge of the latter.
- the device comprises a power circuit making it possible to supply each LED or group of LEDs at a predefined value by modulation of duty cycle.
- the device comprises a device for correcting the thermal drift of the LEDs.
- the passive heat dissipation means comprise an electronic LED support card whose design includes metal tracks for transferring heat from the base of each of the LEDs to the periphery of the map.
- the passive heat removal means comprise a heat conducting material placed around the housing of each of the LEDs to take the maximum of calories from each of the diodes and transfer them to the periphery from the menu.
- the passive heat dissipation means comprise a metal radiator secured to the card by a paste or a heat transfer adhesive, and a thermal seal between said card and said radiator to a metal part with high thermal inertia serving as a heat sink and support for the optical assemblies necessary for the system.
- the passive heat removal means comprise a temperature sensor embedded in the thermal seal and making it possible to have the temperature level of the optical assembly in real time.
- the heat removal means comprise one or the other of the following characteristics, individually or in combination:
- a metal radiator at the back of the card secured to said card by a paste or thermal glue, used to recover the calories from the thermal wells passing through the card.
- the elements are thermally connected by paste or thermal glue to a metal piece of high thermal inertia which also serves as a support for the optical elements. This last piece is used to quickly pump calories and temporarily store them when the lamp is on and restores them more slowly by conduction or convection to the whole system when the lamp is not in use.
- a temperature detection system enabling the power to be cut off when the storage capacity of the metal part is reached.
- the electronic supply means comprise
- the high-efficiency DC / DC converter allows the primary current from the battery to be reduced, thus extending its life and autonomy.
- this DC / DC converter makes it possible to overcome variations in voltages due to variations in the charge level of the battery.
- the light source comprises a means for measuring the temperature capable of detecting the maximum temperature storage compatible with the stability of the optical power emitted.
- This control system advantageously operates between two minimum and maximum levels operating in hysteresis to limit the current in the diodes in the event of a malfunction of the thermal regulation system and thus reduce heat.
- the battery is of the Li ion battery type provided with a temperature sensor to secure the device.
- the battery is of the hybrid ion battery type making it possible to manage the charge level and to display it on an LCD screen.
- the power control and stabilization device is controlled by servo-control, which makes it possible to maintain this power at the desired value.
- the present invention comprises a potentiometer for presetting the power setpoint which allows industrial production to be adjusted to the same known value by means of an individual adjustment of each device.
- the device is of almost universal application, since its use is not simply limited to a specific type of LED lamp.
- this device is, in fact, capable of adapting to the particularities of each of these lamps. The operator is therefore no longer forced to use a particular LED range to polymerize composite materials, not to mention that he can himself modify the operating conditions of his photo-polymerization device by taking into account its own experience, but also the conditions of implementation of the material. Finally, a good power setting and thermal control can meet the needs expressed in this area.
- Figure 1 is a schematic representation of the device object of the present invention, its body appearing in transparency;
- FIG. 2 is a schematic representation of LED diode support slabs oriented perpendicular to the longitudinal axis of the body of the device and distributed around this axis;
- - Figure 3 is a schematic representation in cross section of Figure 2;
- Figure 4 shows, schematically, the device and a suitable electrical charging support
- FIG. 5 corresponds to a schematic representation of the device including the part, defining the power supply and the means used;
- FIG. 7 illustrates, schematically, the device, object of the invention, equipped with remote input means, of the energy type and / or other data in its memory;
- Figure 8 is a more detailed block diagram of the electronic diagram of the device.
- FIG. 9 is a graphical representation illustrating, the intensity or density of illumination as a function of time, wavelength and emission power or the number of emitting diodes.
- the present invention relates to a device 1 for photopolymerization of composite materials which will be of particular interest in the dental field.
- This device 1 comprises a body 10 inside which take position its main constituent elements.
- this device 1 comprises a light source 2 in the form of an optical cone and preferably comprising light-emitting diodes 20, called LEDs, capable to emit a light radiation of a determined wavelength or in a spectrum of defined wavelengths.
- the LED diodes 20 are distributed on a support plate 21 extending perpendicular to the longitudinal axis of the body 10.
- the device 1 also comprises means 3 for evacuating heat to orient and emit the thermal energy produced by the light source 2 in the direction of an area corresponding to an evacuation which does not reduce the efficiency of the device.
- thermal evacuation means 3 can be constituted by a thermal evacuation guide 30 located in the front part of the body 10.
- the present invention is in no way limited to such thermal or optoelectronic means.
- they can also take the form of one or more discharge channels, or even that of a paste, known to a person skilled in the art familiar in the field of heat guides, and which, in the present application, has the advantage of promoting the conduction of the calories generated, and therefore making it possible to keep the same emitted power.
- one of the features of the present invention consists in optimizing the photo-polymerization reaction, this reduction in the energy drop of the light emission is of great importance.
- thermal evacuation means 3 can be in the form of a track, each track being in correspondence with an LED 20, which allows thermal evacuation for each of the LEDs 20 in a selective manner on the support.
- the device is thus transformed into a controllable and individual means of elimination. As it has now already explained above, this feature allows a controllable optimization of the thermal evacuation.
- the energy source 4 which consists in FIG. 1 of a battery, and the optical means can be integrated into an interchangeable part of the body 10, by means of suitable connection means, which facilitates its replacement in the event of of aging of the light source 2, not to mention that the latter can be replaced by a more or less powerful energy source, for example comprising more or less LED diodes 20.
- the removability of the energy source 4 makes it possible to replace it quickly to replace it in case of failure.
- the device 1 further comprises a central unit 5 for managing the operation of the light source 2 for the definition of a determined photo-polymerization energy profile.
- the central unit 5 controls, via a power card 6, the operation of the light source 2 according to determined lighting sequences and at defined powers.
- FIG 4 there is shown a charging support 11 more particularly adapted to receive the device 1 during the recharging of the batteries 4 integrated in the latter.
- the LED diodes 20 are preferably subdivided into elementary modules 22, as shown diagrammatically in FIG. 8, each comprising an identical or different number of LED diodes 20, and powered by regulation circuits. These make it possible, through the central unit 5, to supply the LED diodes 20 of each of these elementary modules 22 at well-defined powers.
- the energy source 4 is associated with a device 7 of DC / DC voltage converter commonly called DC / DC converter, equipped with an adjustment potentiometer 70, and being in the form of a module.
- the DC / DC module 7 just like a transformer in alternative mode, cuts the battery voltage and smooths it to obtain a perfectly constant output voltage whatever the voltage coming from the battery 4.
- An adjustment device makes it possible to adjust a basic output voltage which will then be modulated as a function of the information coming from the temperature sensor.
- the power card 6 comprises a circuit 60 for controlling by shift register and duty cycle modulation making it possible to select and modulate the emission power of each group of LEDs 20.
- FIG. 8 shows a more detailed block diagram of the device.
- the latter notably comprises a charger block BC, a DC power supply DC, a microcontroller MC connected to a memory M, to a library B and to an operator interface IO.
- the DC / DC module 7 is directly connected to the battery 4, the voltage of which it will lower to bring it to the desired power setpoint value, this power setpoint being corrected in real time by the central unit card 5 as a function of the information coming from a temperature sensor CT.
- FIG. 8 there is shown, graphically, the power supply of each module 22 of LED diodes 20 for a determined energy profile, during a defined radiation sequence. While, in FIG. 9, the intensity or the density of illumination has been represented as a function of the time of the wavelength and of the emission power or of the number of emitting diodes.
- the device 1 comprises, in combination, means for adjusting one or more of the parameters of the operation of the light power, namely:
- These means consist of means for selection in a memory connected to said central unit 5, of an energy profile determined from among several profiles prerecorded in this memory and / or from data, here again, among several having been previously recorded in said memory, relating to one or more of the adjustable parameters.
- the operator can still have the choice, through a menu, between different preset energy powers. Note that these selection means allow the operator to adjust this power.
- the device also includes adjustment means, again in the form of a potentiometer and / or a touch screen and / or any other input means, in particular remotely, for programming the memory connected to the central unit, precisely to record different energy values and / or different data relating to the austable parameters.
- adjustment means can use data download means, in particular through a microcomputer 8 via an RS232C interface 50, as shown in FIG. 5, to download, for example, new settings energy through an Internet-type network.
- These downloading means can also take the form of a modem, either directly integrated into the device, or from the loading support 11 to which reference was made above in the description.
- these means for adjusting the power can be in the form of bar code reading means CB.
- a memory in the form of a chip card, preferably of the programmable type, the device 1 comprising an appropriate reader.
- this smart card reader can be found at the level of the loading support 11, in particular if one wishes to lighten the tool part which the user has to handle.
- the device 1 may include a combination of these different embodiments of the gripping means described above.
- the means for adjusting one or more of the parameters of the power of the light source have, in particular, the purpose of further influencing the density of illumination per unit of area, as indicated above.
- this illumination density by intervening, in particular by means of regulation circuits, on the number of LED diodes supplied at the level of each elementary module and / or on the intensity of their supply at during a photo polymerization reaction.
- the present invention perfectly meets the problem posed in that it provides a real response to the power modification and thermal rise of LED lamps as current devices for photopolymerization of different types. of composite materials.
- the device according to the invention gives the user the possibility of overriding the operating conditions of his device as he wishes, so that it is no longer limited, as often by the past, the use of a determined power and a fall of this power over time.
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- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Physics & Mathematics (AREA)
- Veterinary Medicine (AREA)
- Electromagnetism (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Epidemiology (AREA)
- Dentistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Toxicology (AREA)
- Thermal Sciences (AREA)
- Led Device Packages (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Led Devices (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60223845T DE60223845T2 (de) | 2002-01-30 | 2002-01-30 | Elektro-optische vorrichtung zur photopolymerisation von kunststoffmassen |
DK02701346T DK1469788T3 (da) | 2002-01-30 | 2002-01-30 | Elektro-optisk indretning til fotopolymerisation af kompostmaterialer |
CNB028277201A CN1325028C (zh) | 2002-01-30 | 2002-01-30 | 用于复合材料光致聚合的光电部件 |
JP2003567291A JP2005516728A (ja) | 2002-01-30 | 2002-01-30 | 複合マテリアルの光重合のための電子光学装置 |
ES02701346T ES2296889T3 (es) | 2002-01-30 | 2002-01-30 | Dispositivo electrooptico para la fotopolimerizacion de materiales compuestos. |
EP02701346A EP1469788B1 (fr) | 2002-01-30 | 2002-01-30 | Dispositif electro-optique pour la photo polymerisation de materiaux composites |
PCT/FR2002/000354 WO2003068102A1 (fr) | 2002-01-30 | 2002-01-30 | Dispositif electro-optique pour la photo polymerisation de materiaux composites |
US10/502,889 US7354269B2 (en) | 2002-01-30 | 2002-01-30 | Electro-optical device for the photo-polymerization of composite material |
AU2002234688A AU2002234688A1 (en) | 2002-01-30 | 2002-01-30 | Electro-optical device for the photo-polymerization of composite material |
CA002474455A CA2474455A1 (fr) | 2002-01-30 | 2002-01-30 | Dispositif electro-optique pour la photo polymerisation de materiaux composites |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/FR2002/000354 WO2003068102A1 (fr) | 2002-01-30 | 2002-01-30 | Dispositif electro-optique pour la photo polymerisation de materiaux composites |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003068102A1 true WO2003068102A1 (fr) | 2003-08-21 |
Family
ID=27675981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2002/000354 WO2003068102A1 (fr) | 2002-01-30 | 2002-01-30 | Dispositif electro-optique pour la photo polymerisation de materiaux composites |
Country Status (10)
Country | Link |
---|---|
US (1) | US7354269B2 (fr) |
EP (1) | EP1469788B1 (fr) |
JP (1) | JP2005516728A (fr) |
CN (1) | CN1325028C (fr) |
AU (1) | AU2002234688A1 (fr) |
CA (1) | CA2474455A1 (fr) |
DE (1) | DE60223845T2 (fr) |
DK (1) | DK1469788T3 (fr) |
ES (1) | ES2296889T3 (fr) |
WO (1) | WO2003068102A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100959405B1 (ko) | 2005-03-28 | 2010-05-24 | 이인환 | 백 필러용 무선형 근관 충전기 |
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CN100424541C (zh) * | 2006-07-31 | 2008-10-08 | 华中科技大学 | 一种用于光固化快速成形设备的紫外led聚焦装置 |
US20090081605A1 (en) * | 2007-09-25 | 2009-03-26 | Ondine International, Ltd. | Photodynamic therapy device adapted for use with scaler |
USD627471S1 (en) * | 2008-08-28 | 2010-11-16 | 3M Innovative Properties Company | Light device |
USD653340S1 (en) * | 2009-09-18 | 2012-01-31 | Ivoclar Vivadent Ag | Dental laser |
ATE533427T1 (de) * | 2009-12-10 | 2011-12-15 | W & H Dentalwerk Buermoos Gmbh | Medizinische, insbesondere dentale, behandlungsvorrichtung zur abgabe eines mediums |
US9642687B2 (en) | 2010-06-15 | 2017-05-09 | The Procter & Gamble Company | Methods for whitening teeth |
WO2012122455A1 (fr) * | 2011-03-10 | 2012-09-13 | Ultradent Products, Inc. | Fixations de filtres passe-bas utilisables avec des lampes de durcissement dentaire |
ES2905363T3 (es) | 2014-09-17 | 2022-04-08 | Garrison Dental Solutions Llc | Lámpara de polimerización dental |
US10568726B2 (en) * | 2015-08-06 | 2020-02-25 | Transparent Materials, Llc | Photocomposite, light source and thermal detector |
USD810293S1 (en) | 2017-01-20 | 2018-02-13 | Garrison Dental Solutions, Llc | Dental instrument |
US11439839B2 (en) * | 2017-08-09 | 2022-09-13 | Acuity Innovation And Design, Llc | Hand-held treatment device using LED light sources with interchangeable emitters |
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WO1997036552A1 (fr) | 1996-03-28 | 1997-10-09 | Nulite Systems International Pty. Ltd. | Appareil et procede pour polymeriser des compositions dentaires photopolymerisables |
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WO2001060280A1 (fr) * | 2000-02-17 | 2001-08-23 | Duret Francois | Dispositif de photopolymerisation d'application dentaire |
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2002
- 2002-01-30 AU AU2002234688A patent/AU2002234688A1/en not_active Abandoned
- 2002-01-30 ES ES02701346T patent/ES2296889T3/es not_active Expired - Lifetime
- 2002-01-30 DK DK02701346T patent/DK1469788T3/da active
- 2002-01-30 DE DE60223845T patent/DE60223845T2/de not_active Revoked
- 2002-01-30 JP JP2003567291A patent/JP2005516728A/ja active Pending
- 2002-01-30 US US10/502,889 patent/US7354269B2/en not_active Expired - Fee Related
- 2002-01-30 CN CNB028277201A patent/CN1325028C/zh not_active Expired - Fee Related
- 2002-01-30 EP EP02701346A patent/EP1469788B1/fr not_active Revoked
- 2002-01-30 CA CA002474455A patent/CA2474455A1/fr not_active Abandoned
- 2002-01-30 WO PCT/FR2002/000354 patent/WO2003068102A1/fr active IP Right Grant
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Publication number | Priority date | Publication date | Assignee | Title |
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KR100959405B1 (ko) | 2005-03-28 | 2010-05-24 | 이인환 | 백 필러용 무선형 근관 충전기 |
Also Published As
Publication number | Publication date |
---|---|
ES2296889T3 (es) | 2008-05-01 |
US7354269B2 (en) | 2008-04-08 |
JP2005516728A (ja) | 2005-06-09 |
DE60223845D1 (de) | 2008-01-10 |
DK1469788T3 (da) | 2008-03-31 |
US20050123877A1 (en) | 2005-06-09 |
CN1617690A (zh) | 2005-05-18 |
DE60223845T2 (de) | 2008-10-09 |
EP1469788B1 (fr) | 2007-11-28 |
EP1469788A1 (fr) | 2004-10-27 |
CA2474455A1 (fr) | 2003-08-21 |
AU2002234688A1 (en) | 2003-09-04 |
CN1325028C (zh) | 2007-07-11 |
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